NPDES permit SC0001333 · Major NON-POTW · administratively continued, expires 2023-10-31 · EPA's file as of 2026-09-19
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This permit expired on 2023-10-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31.
Reports are due about 29 days after each monitoring period ends (the most common figure among SC permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. fahrenheit | MO AVG | <= 98 deg F | all year |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 105 deg F | all year |
| 001 | Oxygen demand, ultimate | MO AVG | <= 2694 lb/d | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Oxygen demand, ultimate | DAILY MX | <= 5388 lb/d | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 5 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 4 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 11 mg/L | all year |
| 001 | pH | INST MIN | report only | all year |
| 001 | pH | INST MAX | report only | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 21 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | MO AVG | report only | all year |
| 001 | Chlorine, total residual | DAILY MX | report only | all year |
| 001 | Algae, presence | INST MIN | report only | all year |
| 001 | Algae, presence | INST MAX | report only | all year |
| 001 | Length of longest pH excursion | INST MAX | <= 60 min | all year |
| 001 | % of time exceeding pH limits | INST MAX | <= 1 % | all year |
| 001 | 1,4-Dioxane | MO AVG | report only | all year |
| 001 | 1,4-Dioxane | DAILY MX | report only | all year |
| 001 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MX | report only | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | report only | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | report only | all year |
| 001 | IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | report only | all year |
| 01E | Temperature, water deg. fahrenheit | MO AVG | <= 98 deg F | all year |
| 01E | Temperature, water deg. fahrenheit | DAILY MX | <= 105 deg F | all year |
| 01E | pH | INST MIN | report only | all year |
| 01E | pH | INST MAX | report only | all year |
| 01E | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 01E | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 01E | Algae, presence | INST MIN | report only | all year |
| 01E | Algae, presence | INST MAX | report only | all year |
| 01E | Length of longest pH excursion | INST MAX | <= 60 min | all year |
| 01E | % of time exceeding pH limits | INST MAX | <= 1 % | all year |
| 01F | Oxygen, dissolved [DO] | INST MIN | >= 1 mg/L | all year |
| 01F | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 01F | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 01F | BOD, 5-day, 20 deg. C | MO AVG | <= 311 lb/d | all year |
| 01F | BOD, 5-day, 20 deg. C | DAILY MX | <= 820 lb/d | all year |
| 01F | pH | INST MIN | report only | all year |
| 01F | pH | INST MAX | report only | all year |
| 01F | Solids, total suspended | MO AVG | report only | all year |
| 01F | Solids, total suspended | DAILY MX | report only | all year |
| 01F | Solids, total suspended | MO AVG | <= 508 lb/d | all year |
| 01F | Solids, total suspended | DAILY MX | <= 1605 lb/d | all year |
| 01F | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 01F | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 01F | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 01F | E. coli | DAILY MX | <= 349 MPN/100mL | all year |
| 01F | Length of longest pH excursion | INST MAX | <= 60 min | all year |
| 01F | % of time exceeding pH limits | INST MAX | <= 1 % | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states